Pulse
2026-09-18-v3.0
Dataset
2026-10-27-catalog-ai-v2
Ruleset
b2e8889c66f7
Scanned
2026-10-27
Window
February–September 15, 2026
Catalog tracking observation. This repository is measured with the same fixed window and ruleset, but it is not part of the published benchmark or its aggregate claims.

The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio

01Result

dotnet/fsharp ↗

dotnet/fsharp AI coding statistics: 48.8%

of 563 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
48.8% agent · top contributor 62.5%19 contributors
team

A small group is using agents. Adoption has spread beyond one person but is not project-wide.

275
agent commits
288
other considered commits
19
agent contributors
62.5%
largest contributor

02Drivers

What shapes this result

Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.

Assisted or autonomous

228assisted
47autonomous

Assisted — a developer’s identity authored the commit and the agent added itself as co-author. Autonomous — a bot identity authored the commit without a human identity attached.

Agent share by month

Agent-attributed commit share by month
MonthAgent shareConsidered commits
2026-0217.3%52
2026-0354.2%83
2026-0469.6%69
2026-0555.7%70
2026-0636.2%69
2026-0722.9%48
2026-0847.6%126
2026-0982.6%46

Peak month: 82.6%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
GitHub CopilotGitHub25445.1%
Claude CodeAnthropic223.9%

03Evidence

Inspect the matches

Public commit samples let you inspect the signatures behind the aggregate result.

Matched commit samples

  • 17f8eb7d on GitHubOptimizer: eta-float InlineIfLambda partial-application arguments to removGitHub Copilot
  • 628c4b16 on GitHubFix FS0192 Iterate2D from ReflectedDefinition over a recursive value (#204GitHub Copilot
  • fce51f6d on GitHubTeach expert reviewers to check runtime representation preservation (#2051GitHub Copilot
  • 91aead59 on GitHubUse `ValueOption` to look up a reference's definition item (#20534)Claude Code
  • c4a2802c on GitHubRemove trailing whitespace from src and vsintegration/src (#20393)Claude Code
  • a75e648f on GitHubRestore significant trailing whitespace in three SyntaxTree fixturesClaude Code

04Method

What entered the denominator

The result begins with commit history, removes merges and routine automation, and reports literal agent signatures as a lower bound.

Exclusion ledger

Commits in window690
Merge commits removed−17
CI / dependency bots removed−110
Considered563

Bots are excluded from the denominator entirely. Agent attribution requires a literal supported signature; no code-style inference is used.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →GitHub Copilot commitsBrowse repositories with detected GitHub Copilot signatures →GitHub AI commit analyzerInspect another repository with the same evidence model →
Reproduce this observation

Run the same detector locally.

Deterministic signature matching; no code-style inference. Squash merges can remove trailers, so this result remains a measured floor.

npx qmmit-cli dotnet/fsharp

Scan another repository

Try